An occurrence of a fully-oxidized natural titanomaghemite in basalt
Mineralogical Magazine
1989
53
299-304
Dissolution of soil iron oxides with ammonium oxalate: Comparison between bulk samples and thin sections
Pedologie XXXIX
1989
275-297
Effects of acid rain on soil chemistry and nutrient availabil. in the soil
In: Schulze, E.-D. et al. (eds). "Forest decline and air pollution". Sect. 3.1 und 3.2, Ecological Studies 77
1989
Eisenoxide - ubiquitäre Minerale der Verwitterungs- und Bodendecke
LEOPOLDINA (R. 3) 35.1989 (1992) (Vortragkurzfassung der Sitzung am 24.10.1989)
1989
137 - 138
Chromium-for-iron substitution in synthetic goethites
Geochimica et Cosmochimica Acta
1989
53
1293-1297
The vacancy ordering and distribution of aluminium ions in -(Fe, Al)2O3
Solid State Ionics
1989
32/33
214-218